Furnace Technology In order to maintain a reducing atmosphere in a furnace, it should have High excess air No O₂ in flue gas CO in flue gas None of these High excess air No O₂ in flue gas CO in flue gas None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Very high pressure boilers are usually __________ boilers. Water tube Waste heat Fire tube Natural circulation Water tube Waste heat Fire tube Natural circulation ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following furnaces will have maximum thermal efficiency? Boiler furnace Rotary kilns Soaking pits Walking beam reheating furnace Boiler furnace Rotary kilns Soaking pits Walking beam reheating furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology A refractory wall separating the stock and the source of heat is provided in a Continuous furnace None of these Updraft kiln Muffle furnace Continuous furnace None of these Updraft kiln Muffle furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic recuperators compared to metallic recuperators for the same duty Are less costly Occupy more space Are lighter Have higher pressure differential between flue gas & air side Are less costly Occupy more space Are lighter Have higher pressure differential between flue gas & air side ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of an open hearth furnace may be about __________ percent. 5 20 80 50 5 20 80 50 ANSWER DOWNLOAD EXAMIANS APP
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